Take a tree height observation on a smartphone, write a tree poem, and share stories about trees that are special to you on social media as part of the challenge.
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A photo of one of the world’s largest alkaline lakes handily won the crown.
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A new video series offers a look at the satellite program that changed how we look at Earth.
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A new report explores whether seasonal weather conditions play a role in influencing the spread of the virus that causes COVID-19.
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